using System; using System.Collections.Generic; using static System.Buffers.Binary.BinaryPrimitives; namespace PKHeX.Core { /// /// /// encounter area /// public sealed record EncounterArea6AO : EncounterArea { public readonly EncounterSlot6AO[] Slots; protected override IReadOnlyList Raw => Slots; public static EncounterArea6AO[] GetAreas(BinLinkerAccessor input, GameVersion game) { var result = new EncounterArea6AO[input.Length]; for (int i = 0; i < result.Length; i++) result[i] = new EncounterArea6AO(input[i], game); return result; } private EncounterArea6AO(ReadOnlySpan data, GameVersion game) : base(game) { Location = ReadInt16LittleEndian(data); Type = (SlotType)data[2]; Slots = ReadSlots(data); } private EncounterSlot6AO[] ReadSlots(ReadOnlySpan data) { const int size = 4; int count = (data.Length - 4) / size; var slots = new EncounterSlot6AO[count]; for (int i = 0; i < slots.Length; i++) { int offset = 4 + (size * i); var entry = data.Slice(offset, size); slots[i] = ReadSlot(entry); } return slots; } private EncounterSlot6AO ReadSlot(ReadOnlySpan entry) { ushort species = ReadUInt16LittleEndian(entry); byte form = (byte)(species >> 11); species &= 0x3FF; byte min = entry[2]; byte max = entry[3]; return new EncounterSlot6AO(this, species, form, min, max); } private const int FluteBoostMin = 4; // White Flute decreases levels. private const int FluteBoostMax = 4; // Black Flute increases levels. private const int DexNavBoost = 30; // Maximum DexNav chain public override IEnumerable GetMatchingSlots(PKM pkm, EvoCriteria[] chain) { foreach (var slot in Slots) { foreach (var evo in chain) { if (slot.Species != evo.Species) continue; var boostMax = Type != SlotType.Rock_Smash ? DexNavBoost : FluteBoostMax; const int boostMin = FluteBoostMin; if (!slot.IsLevelWithinRange(pkm.Met_Level, boostMin, boostMax)) break; if (slot.Form != evo.Form && !slot.IsRandomUnspecificForm) break; // Track some metadata about how this slot was matched. var clone = slot with { WhiteFlute = evo.LevelMin < slot.LevelMin, BlackFlute = evo.LevelMin > slot.LevelMax && evo.LevelMin <= slot.LevelMax + FluteBoostMax, DexNav = slot.CanDexNav && (evo.LevelMin != slot.LevelMax || pkm.RelearnMove1 != 0 || pkm.AbilityNumber == 4), }; yield return clone; break; } } } } }